Need to connect to ftp through proxy & the 21 port block

Hy, is there a way to connect to ftp if the port is blocked ?... tunneling maybe or some feature from smartFTP . Thanks to my ISP I have a local proxy 2 :evil: and I haven't managed to configure smartFTP to work with it ... or I did but still doesn't work because of the blocked port . Anyway ,if someone has a solution to this, please let me know. Tkx.